jquery marquee-like animation for a div with overflow:hidden and nowrap? -

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i have block element song-title (an absolutely positioned h1 max-width, nowrap , overflow:hidden) needs limited 650px wide. if width of h1 650px, need start animation scrolls div horizontally, , forth, in ping-pong-like manner.

how go animating scroll?

i know not efficient or best way solve problem, ended creating 2 jquery functions, accomplish task:

$.fn.pingpongscroll = function () {     var delay = 30;     $(this).wrapinner('<span>');     var contentwidth = $(this).children('span').width();     var boxwidth = $(this).width();      if (contentwidth > boxwidth) {         var startindent = parseint($(this).css('text-indent'));         var currindent  = startindent;         var left = true;         $(this).pingpongscrollstep(contentwidth, startindent, currindent, left, delay);     } }; $.fn.pingpongscrollstep = function (contentwidth, startindent, currindent, left, delay) {     if($(this).length != 0) {         thisdelay = delay;         if(left) {             if(contentwidth + currindent > $(this).width()) {                 currindent = currindent - 1;                 $(this).css('text-indent', currindent);             } else {                 left = false;                 thisdelay = thisdelay*20;             }         } else {             if(currindent < startindent) {                 currindent = currindent + 1;                 $(this).css('text-indent', currindent);             } else {                 left = true;                 thisdelay = thisdelay*30;             }         }         var thiselement = this;         settimeout(function(){             $(thiselement).pingpongscrollstep(contentwidth, startindent, currindent, left, delay);         }, thisdelay);     } };

although these work well, i'm sure not normal way handle scrolling. also, have no idea how make second function private member of first, can't called site... know how that?


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